OS: Windows 2003 ServerImpacted JBoss version: 4.0.4GA clustered (with 2 nodes)We have a Session Bean which connected to MQ initially when the bean is instantiated. After a Idle period (about 24 hour), the MQ connection got disconnected. Hence when we try a transaction after 24 hour, it failed.I have tried on both JBoss 4.0.3SP1 and 4.0.4GA, and it happened only on 4.0.4GA.